Metal-insulator transition in FexMn1-xS crystals

被引：5
|
作者：
Abrarnova, G. M. [1 ]
Volkov, N. V.
Petrakovskii, G. A.
Mita, Y.
Bayukov, O. A.
Velikanov, D. A.
Vorotynov, A. A.
Sokolov, V. V.
Bovina, A. F.
机构：
[1] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[2] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
[3] Osaka Univ, Toyonaka, Osaka 5608531, Japan
来源：
JETP LETTERS | 2007年 / 86卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0021364007180051
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Results of an experimental study of MnS, FeS, and FexMn1-xS single crystals are presented. The phase composition, the lattice parameters, and the state of paramagnetic ions in FexMn1-xS have been determined by x-ray diffraction analysis and Mossbauer spectroscopy. A sequence of transitions have been found in iron manganese sulfide with x = 0.29 at temperatures T-1 approximate to 25-50 K, T-2 approximate to 125 K, and T-3 approximate to 190 K with a change in kinetic properties and the formation of a metallic state at low temperatures T approximate to 2 K. The possibility of a Mott-Hubbard transition in FexMn1-xS sulfides with variation of the composition and the temperature is discussed.
引用
收藏
页码：371 / 374
页数：4
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